WO2023135014A1 - Dispositif et agencement pour guider un boroscope - Google Patents

Dispositif et agencement pour guider un boroscope Download PDF

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Publication number
WO2023135014A1
WO2023135014A1 PCT/EP2022/087885 EP2022087885W WO2023135014A1 WO 2023135014 A1 WO2023135014 A1 WO 2023135014A1 EP 2022087885 W EP2022087885 W EP 2022087885W WO 2023135014 A1 WO2023135014 A1 WO 2023135014A1
Authority
WO
WIPO (PCT)
Prior art keywords
guide
boroscope
actuator
borescope
guide device
Prior art date
Application number
PCT/EP2022/087885
Other languages
German (de)
English (en)
Inventor
Jan Oke Peters
Michael Thies
Sven Rasche
Jens-Peter Tuppatsch
Sören Wedow
Tarek Mostafa
Oliver Neumann
Original Assignee
Lufthansa Technik Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lufthansa Technik Ag filed Critical Lufthansa Technik Ag
Publication of WO2023135014A1 publication Critical patent/WO2023135014A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
    • F01D21/003—Arrangements for testing or measuring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/28—Supporting or mounting arrangements, e.g. for turbine casing
    • F01D25/285—Temporary support structures, e.g. for testing, assembling, installing, repairing; Assembly methods using such structures
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/14—Testing gas-turbine engines or jet-propulsion engines
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
    • G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/80—Diagnostics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/80—Devices generating input signals, e.g. transducers, sensors, cameras or strain gauges
    • F05D2270/804—Optical devices

Definitions

  • the invention relates to a device for guiding a boroscope for the boroscope inspection of technical devices, in particular aircraft engines, and a corresponding arrangement.
  • a flexible boroscope is inserted and moved manually with continuous image acquisition until the combustion chamber is completely recorded, ie at least one image has been acquired for each area of the combustion chamber.
  • a flexible boroscope is often guided along the entire inner circumference of a combustion chamber before it is then slowly pulled out. This is to ensure that the combustion chamber is examined over its entire circumference.
  • a flexible boroscope can be inserted through a curved guide tube, which e.g. attached to the gas turbine from the outside, can be manually brought to a turbine blade in such a way that it is completely in the image area of the borescope and can therefore be fully diagnosed.
  • patent DE 10 2017 218 426 B1 discloses a device to be attached to the outside of the gas turbine, with which the boroscope is manual positioning along a predetermined direction can be moved back and forth, so as to lead the boroscope tip ze along a turbine blade over its entire length.
  • the object of the present invention is to create devices and arrangements that enable at least partially reproducible borescope inspection of a technical device, in particular of aircraft engines.
  • the invention relates to a guide device for guiding a boroscope for the boroscope inspection of technical devices, in particular aircraft engines, comprising a fastening area for the stationary fastening of the guide device relative to the technical device to be inspected and a boroscope mount for the stationary fastening of a boroscope thereto, wherein the guide device has a translation actuator for changing the distance between the boroscope mount and the attachment area along a guide axis and a rotary actuator for rotating the boroscope mount relative to the attachment area about the guide axis.
  • the invention also relates to a guide device for guiding a boroscope for the boroscope inspection of technical devices, in particular aircraft engines, comprising a fastening area for the stationary fastening of the guide device relative to the technical device to be inspected and a guide head with at least two guide rollers for non-positive constraint Guiding the shaft of a boroscope along a guide axis, with at least one of the guide rollers being able to be driven by a translation actuator, and with the guide head being rotatable about the guide axis relative to the fastening area by a rotary actuator.
  • the invention also relates to an arrangement for the boroscope inspection of technical devices, in particular aircraft engines, comprising a guide device according to the invention and a boroscope guided by the guide device.
  • the invention is based on the finding that forced guidance of a borescope or a boroscope shaft basically enables a reproducible alignment of a boroscope.
  • a forced guidance of a boroscope is achieved in which the movement of the shaft of a rigid boroscope can in principle be controlled via the translation actuator and the rotary actuator so precisely that, starting from a known starting position of the boroscope relative to the guidance device according to the invention, any predetermined position can be set Position and orientation can be approached along the degrees of freedom specified by the guide device. Because the position and orientation of the boroscope can be specified and also approached at different points in time in a reproducible manner, recordings made by the boroscope are fundamentally comparable ( er ) .
  • the guiding devices according to the invention for guiding a boroscope not only make it possible, starting from a known starting position, to assume specific predetermined positions and alignments of a boroscope to be reproducibly approached in order to take pictures or video recordings with the boroscope. It is also possible to use predefined translatory and/or rotary movements to automatically and reproducibly detect an area in a technical device that extends beyond the immediate image area of the borescope according to a predefined scheme. For example, a turbine blade of an aircraft engine can be scanned over its entire length and/or 360° all-round views can be created.
  • the design of its image acquisition unit on the Boroskopspit ze can a two-dimensional image acquisition in color or gray values and / or a two and a half or three-dimensional detection, e.g. using triangulation.
  • two spaced-apart image acquisition units are to be provided on the boroscope tip, the image areas of which overlap at least to a large extent.
  • any boroscopes can be used with the guiding devices according to the invention.
  • the boroscope only has to be able to be connected to the boroscope mount, for the other guide device with guide rollers for forced guidance, the shaft diameter of the boroscope must enable positive forced guidance by the guide rollers.
  • the translation actuator is designed as a threaded rod actuator.
  • a corresponding translation actuator is known to have a threaded rod which can be rotated via a drive unit and which interacts with a suitably designed groove on a carriage in order to move the carriage along the threaded rod.
  • the borescope recording can be designed directly as a carriage of the threaded rod actuator or be fixed to the carriage of the threaded rod actuator.
  • a threaded rod actuator regularly enables a high level of accuracy when approaching a specified position and exhibits smooth starting and braking behavior. The speeds that can be achieved with a threaded rod actuator are generally sufficient for the guide device according to the invention.
  • the translational actuator rotates along with it when it is rotated by the rotary actuator.
  • the rotary actuator is not moved by the translational actuator during a translational movement.
  • the actuators are not moved in a translatory manner (only the translational actuator is moved in a rotary manner), which means that the Wired connection of the actuators to a power supply and / or a control unit is simplified.
  • the translation actuator is designed separately from the guide head and thus, in particular, does not rotate with the guide head.
  • the translational actuator can thus be stationary relative to a housing of the device and/or the rotary actuator, which greatly simplifies the power supply and any wired control, since in this case there are no "rotating" lines for which anti-twist protection or a rotary coupling is provided
  • the mechanical drive power of the translation actuator is connected to the at least one driven guide roller on the guide head via a suitable mechanical coupling.
  • an angular gear can preferably be arranged on the drive shaft of the translation actuator, with which the rotational movement of the drive shaft about the guide axis is converted into a direction relative to the axis of the driven guide roller parallel axis is deflected.
  • a "bevel gear” is a gear in which the input and output shafts do not run parallel to one another.
  • the bevel gear comprises a bevel gear.
  • the play-free transmission of the rotary movement of the drive shaft of the translation actuator that is possible in this way promotes high precision in the drive of the guide rollers and thus in the positioning of a boroscope along the guide axis.
  • straight-toothed bevel gears with involute toothing are used, a very low-wear transmission of the rotary movement is possible, so that little or no play occurs in the angular gear over time.
  • the at least one driven guide roller can directly or via a - preferably backlash-free or at least low-backlash - spur gear on the drive shaft of the translation actuator or. be connected to an angle gear arranged on the drive axle.
  • the translational actuator and/or the rotary actuator comprise stepping motors.
  • stepper motors enables precise control of the translational and/or rotational movement of a boroscope guided with the guide device and thus good reproducibility of the position and orientation of the boroscope.
  • one or more position sensors preferably one or more Hall effect sensors, are used to determine the relative position of the borescope shaft and/or a predetermined initial position of the borescope receptacle along the guide axis and/or the relative rotation onslage of the boroscope shaft and/or are provided for a predetermined initial rotational position of the boroscope receptacle relative to the fastening area.
  • the position sensor or sensors can also be used to interact with markings o provided on the boroscope shaft. ⁇ . be trained .
  • the boroscope can have one or more markings on its shaft, which, for example, from a position sensor of the guide device. can be detected optically.
  • the marking can be a circular marking with an angle marker.
  • At least one specific position and location of the boroscope shaft relative to the guide device or of the borescope mount can be approached in a detectable manner in relation to the fastening area.
  • any desired position and position can then be approached by suitably controlling the translation actuator and/or the rotary actuator, for which stepping motors have proven to be particularly advantageous.
  • the positional and positional accuracy depends practically exclusively on the accuracy of the control of the translational actuator and the rotary actuator.
  • the previously described reproducibility of the position and orientation of the boroscope initially relates only to the position and orientation relative to the guide device. Reproducibility of a specific position and orientation within a technical device can be achieved directly by considering the position and location of the guide device.
  • the guide device can preferably have a fastening device direction, with which it can be fixed in a defined fixing position in the area of a boroscope opening on the outside of a technical device to be inspected. A position and alignment to be approached for the boroscope can then be specified and reproducibly achieved starting from the position of the fastening device defined by the fastening device.
  • the guiding device has a preferably tubular port adapter as a fastening device for fastening to a boroscope opening on the technical device to be examined, the fastening region of the guiding device being designed for detachable fastening to the port adapter.
  • the guide device can be attached to a large number of different boroscope openings of technical devices using appropriate port adapters, in that each port adapter is designed on the one hand for attachment to a specific port adapter designed for the boroscope opening and on the other side to interact with the attachment area of the guide device .
  • the guiding device can thus be used variably.
  • the intended division of the guide device into two makes assembly easier, since initially only the port adapter has to be attached to the device to be inspected before the rest of the guide device and the boroscope have to be connected to the port adapter.
  • the length of a port adapter can also be suitably selected for a specific boroscope opening of a technical device. Due to the length of the port adapter, the maximum penetration depth of a boroscope into the technical device - i.e. the maximum length by which the boroscope actually dips into the technical device - and, based on this, the positions of the boroscope head that can be approached by the guide device to be influenced . With a number of port adapters, the guide device can be used in combination with a specific boroscope for a large number of different boroscope openings in a technical device, each of which requires a different maximum penetration depth.
  • the port adapter has a cone for attaching the guide device to it and the attachment area of the guide device has a corresponding cone receptacle.
  • a latching locking mechanism with an unlocking device is preferably provided on the conical receptacle of the guide device.
  • the position of the guide device relative to a port adapter or of the technical device to which the port adapter is attached is preferred if one or more projections or depressions are provided on the cone, which interact with one or more projections on the attachment area of the guide device in such a way that the guide device is state connected to the cone can no longer rotate .
  • Several indentations and/or projections can be provided and coordinated with one another in such a way that the guide device can be fastened to the cone of the port adapter in several different angular positions.
  • the rotary actuator, the translational actuator, the fastening area and/or the conical receptacle has a feed-through opening of the guide device along the specified axis for the passage of the boroscope shank of a boroscope guided through the guide device.
  • the corresponding design of a or several of the mentioned components of the guide device and the resulting possibility of guiding the boroscope shaft through the components allow a compact construction of the guide device.
  • a coaxial arrangement of the rotary actuator and/or the translational actuator can also facilitate mechanical coupling with the components driven thereby, such as the guide rollers without complex gears.
  • the guide device includes a port adapter and if a feed-through opening is provided in the fastening area or a possible cone receptacle, the port adapter must of course also be provided with matching feed-through openings.
  • the guiding device preferably comprises a control device for controlling the translational actuator and/or the rotary actuator.
  • the control device can be designed in such a way that it can move from a known starting position to any given position and orientation of the borescope.
  • the starting position can in particular be an initial position that can be detected by suitable position sensors.
  • control device As an alternative or in addition to the use of position sensors, it is possible for the control device to be designed to determine the position and orientation of the tip of the boroscope using image recognition methods applied to the image information recorded by the boroscope. The position and alignment of the boroscope tip relative to the gas turbine can be determined by appropriate processing of the image information.
  • FIG. 1 shows a schematic sectional view of an aircraft engine with a guide device according to the invention arranged thereon and a boroscope guided therein;
  • FIG. 2a, b a schematic representation of an embodiment of a fastening of the guide device from FIG. 1;
  • FIG. 3a-c a schematic of a first exemplary embodiment of a guiding device according to the invention.
  • Figure 4 a schematic partial representation of a second
  • FIG. 5a, b Sectional views of the device from FIG.
  • Figure 1 shows a schematic section through a piece of technical equipment 1, namely a two-shaft engine of an aircraft, in which the fan 2 and the low-pressure compressor 3 are rotationally connected to the low-pressure turbine 5 via a first shaft 4, while the high-pressure compressor 6 is connected via a second shaft 7 is rotatably connected to the high pressure turbine 8 .
  • the combustion chamber 9 is arranged between the high-pressure compressor 6 and the high-pressure turbine 8 .
  • a boroscope 11 is inserted with its shaft 12 through a boroscope opening 10 provided for this purpose on the technical device 1 .
  • the boroscope is 11 thereby guided by a guide device 20 according to the invention.
  • the guide device 20 is fixed via a fastening 30 and is fastened in a predetermined position on the gas turbine 1, which is shown in more detail in FIGS. 2a, b.
  • the attachment 30 comprises a tubular port adapter 31 which, detached from the rest of the guide device 20 , can be attached with its one end 32 in a predetermined position on the gas turbine 1 in the area of the boroscope opening 10 .
  • the position can be specified by markings on the port adapter 31, which can be brought into line with corresponding counterparts on the gas turbine 1.
  • the port adapter 31 has a cone 33 for attaching the guide device 20 to it.
  • a central lead-through opening which extends through the entire port adapter 31 and has indentations 34 distributed over the circumference.
  • the guide device 20 is fastened to it with the aid of a fastening area 35 .
  • the fastening area 35 is shown as an example in FIG. 2b.
  • the attachment area 35 has a conical receptacle 36 that fits the port adapter 31 .
  • the fastening area 35 also has a latching locking mechanism 39 with an unlocking device 39' - in this case a recessed release button .
  • the conical connection of port adapter 31 and attachment area 35 with locking mechanism 39 enables a stationary and secure connection between port adapter 31 and attachment area 35 - and thus the actual guide device 20 - that can be produced and released quickly.
  • FIG. 3a-c A first embodiment of a guiding device 20 according to the invention is shown in FIG. 3a-c.
  • FIG. 3a shows the complete guide device 20 apart from the port adapter 31.
  • FIG. 3b essentially corresponds to FIG. 3a, although the housing 21 is not shown.
  • FIG. 3c shows the guiding device 20 in the state of use with the borescope 11 and port adapter 31 attached thereto.
  • the guide device 20 has a fastening area 35 , as explained in connection with FIG.
  • a boroscope receptacle 22 is provided at the end remote from the attachment area 35, to which a boroscope 11 can be fixed in place in such a way that the shaft 12 of the boroscope 11 extends along the guide axis 90 through the guide device 20 and can protrude from the guide device 20 at the fastening area 35 .
  • the boroscope receptacle 22 can be moved along the guide axis 90 with respect to the fastening area 35 and can be rotated about the guide axis 90 .
  • the guiding device 20 includes a translation actuator 23 for changing the distance between the borescope mount 22 and the fastening area 35 .
  • the translation actuator 23 is designed as a threaded rod actuator, in which a slide 24 can be moved along the guide axis 90 by rotating a threaded rod 25 .
  • the borescope mount 22 is arranged on the carriage 24 .
  • the translational actuator 23 can be rotated as a whole by the rotary actuator 26 about the guide axis 90, with which the boroscope mount 22 also rotates about the guide axis 90.
  • Translation actuator 23 , rotation actuator 26 and fastening area 35 each have a feed-through opening along guide axis 90 , through which shaft 12 of borescope 11 can be guided.
  • Translation actuator 23 and rotation actuator 26 are designed as stepping actuators.
  • two Hall effect sensors are provided as position sensors (not shown), with which the position of the translation actuator 23 and the rotation actuator 26 shown in FIG. 3b can be determined. Starting from this initial position and initial rotational position, any other position and angular position of the borescope mount 22 relative to the fastening area 35 can be approached with high accuracy by suitably controlling the stepping actuators.
  • the guide device 20 is shown in the state of use.
  • the guide device 20 is attached to a technical device 1 with the aid of a port adapter 31 .
  • a boroscope 11 is fastened to the boroscope mount 22 taken whose shaft (not shown) extends along the guide axis 90 through the guide device 20 and the port adapter 31 into the technical device 1 or. can extend into .
  • the latter is particularly dependent on the position of the borescope mount 22 relative to the fastening area 35 .
  • the boroscope 11 can move into the housing 21 of the guide device 22 .
  • FIG. 4 shows an alternative embodiment of a guide device 20 according to the invention, the housing 21 of the guide device 20 being shown transparent.
  • the shape of the housing 21 corresponds to an elongated square tube, but in principle it can also have any other shape. It is only essential that the housing 21 is designed for the passage of a borescope shaft 12 (cf. FIGS. 5a, b). At one end of the housing 21 there is a fastening area 35 according to FIG. 2b, into which a port adapter 31 (only partially shown) is inserted.
  • a guide head 27 , a translational actuator 23 and a rotary actuator 26 are arranged in the housing 21 .
  • the drive shafts 23', 26' of the two actuators 23, 26 are each formed on hollow shafts for the passage of a boroscope shaft 12 and are coaxial to one another, but also formed with the corresponding passage of the fastening area 35, whereby a basic guide for a person in the device 20 inserted shaft 12 of a boroscope 11 is ensured along the guide axis 90 .
  • the actuators 23 , 26 are stepping actuators.
  • the guide head 27 which is shown in more detail in FIGS. 5a, b in two sectional views and with the borescope
  • the shaft 12 shown is directly connected to the drive shaft 26 ′ of the rotary actuator 26 and can be rotated about the guide axis 90 with the aid of this rotary actuator 26 .
  • Two guide rollers 28 are rotatably mounted on the guide head 27 for the frictional forced guidance of a boron shank 12 inserted between them.
  • the distance between the guide rollers 28 is set to a predetermined diameter of the boroscope shank 12 so that any boroscope 11 with a shank diameter corresponding to or close to the predetermined diameter can be used with the guide device 20 .
  • a borescope shaft 12 guided between them can be moved in a translatory manner.
  • the guide rollers 28 are coupled to one another in opposite directions via a gear mechanism consisting of spur gears 29 ′ and straight-toothed bevel gears 29 ′′.
  • the bevel gears 29'' simultaneously form an angular gear 29, one bevel gear 29'' of which is connected to the drive axle 23' of the translation actuator 23. Regardless of the position of the guide head 27 relative to the guide axis 90 set via the rotary actuator 26 , the guide rollers 28 can be driven by the translation actuator 23 without them having to rotate with the guide head 27 .
  • the guiding device 20 also includes a position sensor 41 with which the surface of the borescope shaft 12 is optically detected. If the shaft 12 of a boroscope 11 has a ring-shaped circumferential marking 13 with a zero position marker 14 (cf. FIG.
  • the boroscope 11 can be moved into an initial position and alignment via the position sensor 41, from which point Any position and orientation along the degrees of freedom specified by the device 20 can be approached with the boroscope 10 .
  • the boroscope 11 is moved with the translation actuator 23 until the ring-shaped marking 13 is detected by the position sensor 41 .
  • the boroscope 11 is then rotated about the guide axis 90 by rotating the guide head 27 until the zero position marker 14 is also detected by the position sensor 41 .
  • the control device 40 can achieve a desired position and alignment of the boroscope 11 by stepwise activation of the translation actuator 23 and the rotation actuator 26 .
  • the guide devices 20 shown can include a control device 40 (cf. FIG. 1).
  • the control device 40 is designed in particular to control the translation actuator 23 and the rotation actuator 26 .
  • the information may also Position sensors 41 are processed by the control device 40 in order to be able to move to an initial position and/or initial rotational position in an automated manner. Starting from a position defined in this way, the control device 40 can move to the desired position and position by appropriately controlling the translation actuator 23 and the rotation actuator 26 .
  • the control device 40 can also be connected to the boroscope 11 so that the control device 40 has the images recorded by the boroscope 11 at its disposal. In parallel to this or via the control device 40, further systems for storing or processing the images recorded by the boroscope 11 can be connected to the boroscope 11 (not shown).
  • the control device 40 can in particular be designed to evaluate the image captured by a boroscope 11 using image recognition methods in order to determine the position and orientation of the tip of the boroscope 11 in the technical device 1 .
  • By the position and alignment of the boroscope 11 being determined via the captured image, it can be ensured that the boroscope 11 has actually reached a desired position and alignment.
  • a position and alignment determined in this way can also be used as a starting point for further activation of the translational drive unit 23 and rotational drive unit 26 in order to achieve a desired position and alignment of the boroscope 11 .

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Abstract

L'invention concerne des dispositifs de guidage (20) destinés au guidage d'un boroscope (11) pour l'inspection boroscopique d'appareils techniques (1), en particulier de blocs propulseurs d'aéronefs, ainsi qu'un agencement comprenant un tel dispositif de guidage (20) et un boroscope (11) ainsi guidé. Un dispositif de guidage (20) selon l'invention comprend une zone de fixation (35) destinée à assurer la fixation fixe du dispositif de guidage (20) par rapport à l'appareil technique (1) à inspecter et un logement de boroscope (22) destiné à assurer la fixation fixe d'un boroscope (11) dessus, le dispositif de guidage (20) présentant un actionneur de translation (23) destiné à modifier la distance du logement de boroscope (22) et de la zone de fixation (25) le long d'un axe de guidage (90) et un actionneur de rotation (26) destiné à assurer la rotation du logement de boroscope (22) par rapport à la zone de fixation (35) autour de l'axe de guidage (90). Un autre dispositif de guidage (20) selon l'invention comprend une zone de fixation (35) destinée à assurer la fixation fixe du dispositif de guidage (20) par rapport à l'appareil technique (1) à inspecter et une tête de guidage (27) dotée d'au moins deux galets de guidage (28) pour assurer le guidage forcé à force de la tige (12) d'un boroscope (11) le long d'un axe de guidage (90), au moins un des galets de guidage (28) pouvant être entraîné par un actionneur de translation (23), et la tête de guidage (27) pouvant tourner autour de l'axe de guidage (90) par rapport à la zone de fixation (35) au moyen d'un actionneur rotatif (26).
PCT/EP2022/087885 2022-01-11 2022-12-27 Dispositif et agencement pour guider un boroscope WO2023135014A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022100441.4A DE102022100441A1 (de) 2022-01-11 2022-01-11 Vorrichtung und Anordnung zur Führung eines Boroskops
DE102022100441.4 2022-01-11

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Citations (3)

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WO2013116078A1 (fr) * 2012-01-31 2013-08-08 Siemens Energy, Inc. Système et procédé d'inspection optique automatisée de turbines à gaz industrielles et d'autres machines de production d'énergie ayant un périmètre d'inspection multi-axe
DE102017218426B3 (de) 2017-10-16 2019-01-17 Lufthansa Technik Ag Vorrichtung und Verfahren zur Boroskopinspektion von Strahltriebwerken
DE102020106509B3 (de) * 2020-03-10 2021-06-24 Lufthansa Technik Aktiengesellschaft Vorrichtung und Verfahren für die Boroskopinspektion von technischen Geräten

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